Improvement in self-closing- faucets



am am attntlihlra SOHULTZ AND 'THOMAS WARKER, 0F NEW YORK, N. Y.

Lette/rs Patent No. 100,561, dated .March 8, 1870;` water/lated February21,1870.

`.TRIPRQVIEHVINTnIN SELF-CLOSING' FAUCETS.

The Schedulereferred to in these Letters Patent andmaking part ofthesame.

lTo all whom it may concern.- y

Be it known that we, CARL ScHULTz and THOMAS WARKER, both of the city,county, and `State of New York, have invented anew and usefulImprovement in Self-GlosiugFaucetsfor Mineral-Waters, &'c.'; and

we do hereby declare the following to be a full, clear,

and exactdesc'ription thereof, which will enable those skilled in theart to make and use the same, reference being had to the accompanyingdrawing forming part of this specification, which drawingl represents alongitudinal central section of this invention.

This `invention relates' to a faucet, which is provided with a iiatspring valve, which closes up from the inside against its seat by thecombined action of the pressure of l themineral-water or other fiuid,and

by that of a spring, and the stem of which passes through a smallopeningr and through an expansionchambe'r into a second chamber, whichincloses the spring, said spring-being made to act atone end againstpacking-rings surrounding -the valve-stem,

` and at its other endl againsta head on said valve'- stem, while ascrew with a double or triple thread acts against the outside of saidhead YinA such a manner` that, by turning the screw, the valve is forcedoff from its seat, and, at the same time, the packing-.rings in thespring-chamber are firmly' compressed against the'stem, and the mineralwater or other iuid is allowed to discharge through theexpansion-chamber `and spout, without being permitted to `leak past thevalvestem into the spring-chamber,L 4and as the liquid passes throughlthe expansion-chamber its velocity is reduced in4 proportion to theincrease in the area of the transverse section of said chamber over thearea of thc transverse section of the opening in the valve-sent, and alarge volume of liquid can be discharged with great rapidity, withoutdanger of spilling any portion thereof by the force of the dischargefrom the tumbler into which it isV received; and 4furthermore, when thehand-screw is released the valve closes automatically, said screw beingcarried back by the pressure of the liquid against the valve, combined ywith the force of the spring.

In the drawingrlhe letter A Vdesignates the head which incloses thevalve a. I

Said head is secured by a screw-thread, b, to the tubular shank B, whichis intendedto be secured to a mineral-water fountain, or to; anothervessel or reservoir containing duid under pressure by a screwthread andnuts, or by any other suitable means.

The inner end `of the head A forms a seat, c, for` the valve a, and thisseat is :provided with a hole, through which passes the" stem d oftheyalve, said hole beinglf such a size that it leaves sufficient roomround the stem to allow the -uid from the fountain or other reservoir topass out freely to the spout e whenever the valve is forced back fromits seat.

` Thespout terminates in lthe expansion-chamheithrough which thevalve-stem extends, and which4 rings t', situated at the bottom of thespring-chamber f and embracing the valve-stem, while the outer end ofsaid spring bears against the head j of the valve-stem, and therebyassists in forcing the valve up against its seat.

The valve is opened by a hand-screw, C, which is tapped into ascrew-thimble, 7c, secured in the outer end of the head- A, said screwbeing provided with a hand-wheel and with a double or triple thread, sothat a portion of a revolution is sulicient toiopen the valve. farenough for the discharge of the liquid, and that, when the hand-wheel isreleased, the ,pressure of the liquid acting against the valve, assistedl,joy the force of the spring h, is suiiiciently powerful to carry thescrew back to its ,original position, and to close thevalveantomatically.

The area of the Vcross-section of the expansionchamher f and that of thecross-section of the spout are considerably larger than that of theannular space left in the valve seat for the discharge' of the liquidwhen the valve is opened, and as the liquid passes `into theexpansion-chamber its velocity is reduced in proportion to suchincreased area, so that, if the valve is lthrown wide open, the liquidwill discharge with great rapidity, and'still sufficiently quiet toprevent any spilling iiom the tumbler into which it is received,

even if the pressure of the liquid is one hundred and twenty pounds tothe square inch, while in discharging liquid subjected to such a highpressure through an ordinary faucet the discharge takes place in puffs,and even with the greatest care spilling can hardly be prevented.

With our faucet, therefore, a tumbler can heY filled much morerapidly'than it can with a faucet of the ordinary construction, and thefaucetcloses automatically as soon as the hand-screw is released. Y

By the packing-ring or rings i in the bottom of the .spring-chamber theliquid'is prevented..,from leaking

